Home / 518,323,193.40-777,484,790.10-503,974,286.40

Finding the Fourth Proportional to 518,323,193.40, 777,484,790.10 and 503,974,286.40

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Solution

The fourth proportional to 518,323,193.40, 777,484,790.10 and 503,974,286.40 is: 755,961,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,323,193.40 : 777,484,790.10 = 503,974,286.40 : x
  2. Step 2: Convert to fraction form
    518,323,193.40/777,484,790.10 = 503,974,286.40/x
  3. Step 3: Cross multiply
    518,323,193.40x = 777,484,790.10 × 503,974,286.40
  4. Step 4: Simplify right side
    518,323,193.40x = 391,832,342,277,501,248
  5. Step 5: Solve for x
    x = 391,832,342,277,501,248/518,323,193.40
  6. Step 6: Final answer
    x = 755,961,429.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.